Window



July 269 1927' H. E. CAMPBELL WINDOW 5I Sheets-Sheet l Filed July 14, 1923 INVENTOR HARY f AMPHELL ATTORNE YS JUE H. E. CAMPBELL WINDOW Filed July 14. 1925 3 Sheets-Sheet 2 INVENTOA HARRY f CAMPBELL BY CIW MMM ATTORNE f5 H. E. CAMPBELL WINDOW 5 Sheets-Sheet-S Filed July 14, 1925 INVENTOR HA 7??? Y f CAMPfLL BY CAM/1 W QAM ATTORN E YS Patented `ulyv 26, 1927.

UNITED STATES PATENT OFFICE.

HARRY E. CAMPBELL, OF BALTIMORE, MARYLAND,

ASSIGNOR T CAMPBELL METAL wnmow.

Application led July 14, 1923. Serial N0. 851,506.

My invent-ion relates to metal windows, and in the embodiment presented have shown an improved sliding window of the type in which the sash frames lie 1n a common plane when the window 1s closed.

In the accompanying drawings Flg. 1 shows a vertical section of a window embodying my invention with the sashes 1n closed position; Fig. 2 is a section o n line 2 2 of Fig. 1: Fig. 3 is a section 'simllar to Fig. 2 but showing the sashes in open position; Fig. 4 is a sectional view taken in the same direction as Fig. l, but showlng the sashes in open position. In this view the solid lines show the parts which are located within the jambs and dot and dash lines are used to indicate parts which would lle 1n front of the planes on which theJ sections are taken. Fig. 5 is a sectional View, looking at one jamb from the rear (inside) face of the window.

Referring to these drawings, the upper sash, which is designated by the letter A, has two main side plates which are adapted to enter the jamb and are bent to engage the edge and one face of the sheet of glass as shown in Figs. 3 and 4. Attached to the side plates 10 are glass stops 11. At the top of sash A the main frame comprises a plate 12 which is bent to engage the edge and one face of the Sheet of glass in the vsame way as plate 10. Plate 12 is adapted to enter the lintel and is connected to plates 10 by mitred joints. Glass stop 13, corresponding to glass stopv 11, is attached to plate 12. The bottom portion of sash A consists of a U- shaped member 14, one leg and the bottom of which are brazed with mitred joints to plates 10; the other leg, which lies in the same plane as plate 13, serves to hold the glass in place. At variouspolnts along the length of member 14, strips 15 are struck down from the leg which lies in the same lane as the bottom end of plate 12. Mem- Eer 16, the shape of which 1s clearly shown in Fi 1, is adjustably attached to strips 15 an serves as part of the meeting rall of sash A.

The lower sash which is designated by the let-ter B has a meeting rail made up of parts identical with those of sash A, but located in inverted position. U-shaped member 17 corresponds to the U-shaped member 14 and has struck out from it strips 18, to which member 19 is adjustably connected. Sash B has two main side plates 20 which are bent to engage the edge and one face of the glass and are then bent forward and out so that the portion which enters the jamb lies in the same plane as the portion which engages one face of the sheet of glass. This is clearly shown in Fig. 3. It is to be noted from Figs. 3 and 5 that the sash plates 20 of sash B do not extend into the jamb as far as the sash plates 10 of sash A. However, near its top, each sash plate 20 has a wing portion 21 which extends into the j amb the same distance as plate 10 of sash A and at the bottom each plate 20 has another wing portion 22 which likewise extends into the jamb the same distance as plate 10 of sash A. These wings 21 and 22 are adapted to cooperate with the guide cams of the lower sash in a manner which will be explained hereafter.

The bottom rail of sash B comprises a plate 23 of approximately the same cross section as plates 20, to which it is attached by brazed mitred joints as shown in Fig. 5. Sash B is provided with glass stops 24 which are attached to plates 20 and a bottom glass stop 25 whichis attached to plate 23. Glass stop 25 also extends down suiiiciently far to contact with the sill.` An additional U- shaped strip 26 is attached to the bottom rail and serves to stilen the bottom rail, contact with the sill, and to supply a handle for opening and closing the lower sash. The

arrangement of parts 23, 25 and 26 is shown in Fig. 1'.

The lintel comprises a hollow boxlike portion 27 which is slotted to receive plate 12. Adjustably connected to lintel 27 is a U- shaped member 28 into which plate 12 is adapted to extend. By moving U-shaped member 28 the same result can be obtained as if the slot in portion 27 could be moved.

Each jamb has a tubular member 29 which forms a portion of the front face of the jamb, all of the outer face and all of the rear face. The balance of the outer face is formed by the member 30 which in cross section is in the shape of the letter J. The shorter leg of member 30 forms a portion of the inner face of the jamb and thelonger leg of this member extends into the interlor of the jamb as shown in Figs. 2 and 3. Member 31, shaped as shown 1n Figs. 2 and 3, is ad'ustably connected to the longer leg of mem er 30 and is bent to form a hook 32. Plate 33 is adapted to enter hook 32 and at its outer edge to interlock with member 29 as shown in Figs. 2 and 3. It is to be noted that plate 33 can be removed if it is slid to the rear, that is, towards the interior of the building and that the removal of plate 33 will not change the position of member 31 or member 30.

Adjustably connected to member 30 is top guide 34 which has a cross sectional shape as shown in Fig. 2. It is to be noted that guide 34 extends in from the longer leg of member 30 suiiiciently far so that its inner edge lies in the same plane as the inner face of the short leg of member 30; in other words, its inner edge lies in the plane of the inner :tace of the jamb. Top guides 34 extend down from the lintel to the middle of the window so that when the upper sash is closed the bottom of guide 34 lies in about the same horizontal plane as the bottom of U-shaped member 14. At its bottom, guide 34 is beveled upwardly and toward the rear of the window, providing a cam surface 35. Sucient clearance is provided between guide portion 34 and the shorter leg of member-30 to allow plate 10 to enter with a sliding contact and there is suiticient clearance between guide 34 and hook portion 32 of member 31 to allow plate 2O to enter with sliding clearance. When `the window is closed plates of lower sash B will lie against the short leg of member and plates 10 of upper sash A will lie immediately above them and will be held against members 30 by guides 34. As the lower sash is raised, the curved corners of members 17 and 14 will act as cam surfaces to force the lower sash out of the upper sash; at about the same time, wing 21 will strike against cam surface of guide 34 so that as the 'lower sash continues its upward movement, it will slide between guides 34 and hook shaped portions 32 of members 31.

In order to cause the lower sash B to move into the plane of the uppersash A, as Athe window is closed, I supply lower guides 36. These are of a shape similar to upper guides 34 and are likewise adjustably mounted on the longer leg of member 30. However, guides 36 extend in toward the Jface of the ]amb only about half as fares guides 34 so that the main portion of plate 20 cannot contact with guides 36, although the wings21 and 22 will contact with guides 36. Guides 36 extend upwardly Jfrom a short distance above the jamb to a point a short distance below guides 34. At its lower edge the inner portion of each guide 36 is bent forward to form a stop 37 v to limit the downward movement of upper sash A and is beveledV upwardly and to the rear to form cam surface 38. At its upper edge the inner portion of guide 36 is bent rearwardly to form the projection 39 and is beveled upwardly and to the rear to form cam surface 40. Plates 41 are adjustably connected to the longer legs of members 30 at the bottom and are provided with cam faces 42. The vertical distance between the cam faces 38 and 42 is slightly greater than the height of wings 22, and the vertical distance between cam faces 35 and 4() is slightly greater than the height of wings 21.

When the lower sash is raised and one pushes it down to close the window, wings 21 will strike projections 39 and wings 22 will strike plates 41 and these wings by riding on cam surfaces and 42 respectively will cause lower sash B to'move forward into the plane of the upper "sash A. When these sashes are in the same plane, the lower portion of member 16 will contact with the inverted U-shaped member 17 and the upper portion of member 19 will Contact with U- shaped member 14. Additional downward movement of sash B will cause wings 21 to move down to the outside of guide 36 and will cause wings 22 to move down on the outside of vertical portion 43 of the sill, and thus lower sash B will be hel-d firmly in place and cannot be moved except in an upward direction; and because the vcont-acts between the two meeting rails lie in vertical planes, the additional downward movement of sash B after it has entered the plane of sash A, will not open any joint between the meetingl rails. It is thus apparent that by so forming the meeting rails that relative vertical movement of the two sashes while in one plane can be had without opening the joints between thek meetiner rails, l am able to build a window the sashes of which are adapted to lie in a common plane when the window is closed and have this window so constructed that simple up-and-down movements of the sashes will cause the sashes to take their desired position without the operator thinking of horizontal movement; at the same time, when the window is closed the sashes will be held iirmly in place and all this is accomplished without providing any moving parts other than the sashes themselves.

The window is lirst assembled with members 3l and plates 33 removed. Upper sash A is then put in place and guides 34 set so as to allow sliding clearance of this sash. Lower sash B is then put in Aplace in its closed position and guides 36 are set to allow sliding clearance. Plates 41 are adjusted in relation to the vertical portion 43 of the sill. The lower s ash is then raised and member 31 is set to allow a sliding clearance of the lower sash between it and ides 34. These adjustments can all be ma e in the factory. Weight chains which are indicated at 44 and 45 are then attached to plates 10 and 20 respectively, in the usual manner and passed over the usual pulleys which are connected with the lintel, and the weight chains are attached to the weights C and D. If a weight spreader is used as indicated at 46, it may be removably connected with the sill and lintel in any desired manner. It

.will be noted that the weights C and D can be inserted by removing plate 33 and that the removal of plate 33 will not in any way ai'ect the adjustment of the sash clearances. This is of great importance, for lthe sash frames are shipped with the weights removed, and if the insertion of the weights after the window is built into place demands the removal of members which affect the sash adjustments, then it is necessary to have an expert go over each window after the sashes are in place, so that these adjustments will be properly made. B the construction here provided, all sash a justments can be made at the factory and do not need to be changed thereafter. As a matter of fact, the window weights can be removed even after the window has been built into place without even opening the window.

It may also be noted, as shown in Fig. 2, that lower sash plate 20 is of such shape that when the window is closed this plate will cover the lower portion of the gaps between members 31 and 30. The u per portion of these gaps will be largely ed by guides 34.

What I claim is:

l. A window-frame and sash construction comprising jambs, sashes adapted to slide in said jambs with their frames in 'different planes and to move into such a position when the window is closed that their frames will lie in a common plane, cooperating members forming fixed portions of the lower sash and the j a-mbs respectively, adapted as the lower sash is moved down, automatically to cause the meeting rail of the lower sash to be moved into the plane of the upper sash and adapted when the lower sash is in closed position to hold the upper part of the lower sash a ainst substantial movement resulting from orizontal pressure exerted on the front (outside) face of the lower sash, automatic means for causing the lower part of the lower sash to be moved into the lane of the upper sash as the window is c osed, and meeting rails on the sashes of such shape as to forma joint between the sashes when the window is closed, and of such shape as to permit the initial opening movement of the lower sash to be substantially vertical.

2. A window-frame and sash construction comprising jambs, two sashes adapted to slide in the jambs, the sashes being of such tween the sashes without preventingrelative movement of the sashes while in the same plane.

3.' A window-frame and sash construction as defined in claim 1 and further characterized by having contact portions on the lower sash and stops attached to the jambs in such positions that when the lower sash is closed, the stops will cooperate with such lcontact portions to hold the lower sash in the plane of the upper sash, but after the lower sash has been raised in the plane of the upper sash the lower sash will be free to move out of the plane of the upper sash.

4. A window-frame and sash vconstruction comprising jambs, sashes adapted to receive panes of glass and having plates adapted to extend into the jambs, such plates being of a thickness less than theI maximum thickness of the side members of the sashes, the plates of the lower sash -being adjacent to the front (outside) face of the glass and the plates of the upper sash being adjacent to the rear (inside) face of the glass, opens ings in the jambs adapted to receive the plates, movable members forming part of the jambs, adapted to hold the plates of both sashes in a common plane when the window is closed and adapted to move as the window is opened to permit one of the sashes to move into a ditferent plane, and means for limiting the movement of such members so that the back and forward movement of such members is less than the maximum thickness of the side members of the sashes.

5. A window-frame and sash construction, comprisin jambs, sashes adapted to slide in the jam s, means for adjusting the clearance between the sashes and the jambs,- a weight compartment in each of the jambs and a removable plate admitting to each such wei ht compartment and forming a portion o? plates being removable without changing the adjustment of the clearances between the sashes and the jambs, and so positioned that they do not contact with the sashes when the window is closed and may be removed after the window has been built into a linished wall.

6. A window-frame and sash construction comprising jambs, front and rear plates each forming a portion of the inner face of one of said jambs, and positioned with a space between the respective front and rear plates, `sashes adapted to slide in such spaces, means the inner face of each jamb, such.

Afor holding the upper sash in sliding contact with said front plates, automatic means for causing the lower sash when pushed up -to take a position between the upper sash and I the rear plates, and when pus ed down, to

make a joint with said front plate for substantially the height of the lower sash, and

rearwardly extending portions forming part of the lower sash, ada ted, when the window is shut, substantie y to close vthe lower part of the space between said front and rear plates.

HARRY E. CABIPBELL. 

